Pac-12 women's basketball teams tip off highly-anticipated league schedule. Eight teams tip off the league schedule this week. Pac-12 play is expected to be one of the most exciting in league history with five teams entering the conference slate ranked in the top 20. Four of the last nine undefeated teams in the country are in the Pac-12, including #18/18 ARIZONA, COLORADO and #10/10 UCLA, who all start Pac-12 action with their traditional rivals.